Error Messages - Steca PR 2020 IP65 Operating Instructions Manual

8. Error Messages

Caution! Please do not open the regulator or attempt to replace
components when troubleshooting. Improper maintenance can be
hazardous to the user and the system.
If the regulator detects errors or unauthorized operating states, it flashes error codes
on the display. Error codes can generally be differentiated, whether there is a temporary
malfunction, e.g. regulator overload or a more serious system error that can be remedied
by appropriate external measures.
Since not all errors can be simultaneously displayed, the error with the highest error
number (priority) is displayed. If several errors are present, the second error code is
displayed after remedying the more significant error.
The following meaning is assigned to the different error codes:
Display
718.573 | 11.27
Meaning
Communication er-
ror with the internal
memory (EEPROM).
Communication error on
the external bus (6-pole
edge connector).
Short-circuit at the exter-
nal temperature sensor.
Excessive temperature
regulator turned off the
consumer due to internal
over heating.
Battery voltage too low.
Voltage <10.5 V or
<21.0 V
Battery voltage too high.
Voltage >15.5 V or
>31 V.
Cause / Remedy
Disconnect consumer, solar module
and battery. Reinstall the device. If the
error reoccurs, please contact your
specialized dealer.
Check the 6-pole plug-in connection
on the edge connector, power supply
and function of the external extension.
If the error reoccurs, please contact
your specialized dealer.
Check the contact of the 2-pole edge
connector, remove short-circuit. Check
sensor.
Let regulator cool. Check the cause for
overheating (installation site, other
heat sources). Possible reduce charge
or load current. Ensure the regulator
has proper ventilation.
Check installation. Check battery volt-
age, possibly recharge battery manu-
ally. Consumer connected directly to
the battery can deep-discharge the
battery.
Check installation. Check battery volt-
age, possibly check additional charge
sources.
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